To solve for the circumference of a circle, you need to know the equation: 2πr (Normally, pi is 3.14 but since we're supposed to use 22, so be it).
The equation for the area, on the other hand, is πr^2. In order to solve for the area, we need to solve for the radius first.
Since we know the circumference is 44 inches, we can form an equation:
2πr = 44
Since π is 22:
2(22)r = 44
Simplify:
44r = 44
Divide both sides by 44:
r = 1
Now that we know the radius, we can input it into the equation for the area.
πr^2 = π*1^2 = π*1
Since π is 22:
22*1 = 22
The area of the circle is 22 in^2.
-T.B.